<?
	$msg_number = $_GET['msg_number'];
	$idx_file = $_GET['idx_file'];
	$newfilename = $_GET['newfilename'];
	$msg_part = $_GET['msg_part'];
	$msg_folder = $_GET['msg_folder'];
	$msg_folder = mb_convert_encoding($msg_folder,"UTF7-IMAP", mb_detect_encoding($msg_folder, "UTF-8, ISO-8859-1", true));
		
	$encoding = strtolower($_GET['encoding']);
	$fileContent = "";
	
	if($msg_number && $msg_part && $msg_folder && (intval($idx_file == '0' ? '1' : $idx_file))) {
		$username = $_SESSION['phpgw_info']['expressomail']['user']['userid'];
		$password = $_SESSION['phpgw_info']['expressomail']['user']['passwd'];
		$imap_server = $_SESSION['phpgw_info']['expressomail']['email_server']['imapServer'];
		$imap_port 	= $_SESSION['phpgw_info']['expressomail']['email_server']['imapPort'];		
		if ($_SESSION['phpgw_info']['expressomail']['email_server']['imapTLSEncryption'] == 'yes')
		{
			$imap_options = '/tls/novalidate-cert';
		}
		else
		{
			$imap_options = '/notls/novalidate-cert';
		}
		$mbox_stream = imap_open("{".$imap_server.":".$imap_port.$imap_options."}".$msg_folder, $username, $password);   	
   		$fileContent = imap_fetchbody($mbox_stream, $msg_number, $msg_part, FT_UID);
		include("class.imap_attachment.inc.php");
		$imap_attachment = new imap_attachment();	   		
		$a = $imap_attachment->download_attachment($mbox_stream, $msg_number);
		
		$filename = $a[$idx_file]['name'];
	}
	else
		$filename = $idx_file;
			
   	$filename 	 = $filename 	? $filename 	: "attachment.bin";
   	$newfilename = $newfilename ? $newfilename 	: $filename;
   	$strFileType = strrev(substr(strrev(strtolower($filename)),0,4));
	
   	downloadFile($strFileType, $filename, $newfilename, $fileContent, $encoding);
   
   function downloadFile($strFileType, $strFileName, $newFileName, $fileContent, $encoding) {
   	$ContentType = "application/octet-stream";

   	if ($strFileType == ".asf") 
   		$ContentType = "video/x-ms-asf";
   	if ($strFileType == ".avi")
   		$ContentType = "video/avi";
   	if ($strFileType == ".doc")
   		$ContentType = "application/msword";
   	if ($strFileType == ".zip")
   		$ContentType = "application/zip";
   	if ($strFileType == ".xls")
   		$ContentType = "application/vnd.ms-excel";
   	if ($strFileType == ".gif")
   		$ContentType = "image/gif";
   	if ($strFileType == ".jpg" || $strFileType == "jpeg")
   		$ContentType = "image/jpeg";
   	if ($strFileType == ".wav")
   		$ContentType = "audio/wav";
   	if ($strFileType == ".mp3")
   		$ContentType = "audio/mpeg3";
   	if ($strFileType == ".mpg" || $strFileType == "mpeg")
   		$ContentType = "video/mpeg";
   	if ($strFileType == ".rtf")
   		$ContentType = "application/rtf";
   	if ($strFileType == ".htm" || $strFileType == "html")
   		$ContentType = "text/html";
   	if ($strFileType == ".xml") 
   		$ContentType = "text/xml";
   	if ($strFileType == ".xsl") 
   		$ContentType = "text/xsl";
   	if ($strFileType == ".css") 
   		$ContentType = "text/css";
   	if ($strFileType == ".php") 
   		$ContentType = "text/php";
   	if ($strFileType == ".asp") 
   		$ContentType = "text/asp";
   	if ($strFileType == ".pdf")
   		$ContentType = "application/pdf";
   	if ($strFileType == ".txt")
   		$ContentType = "text/plain";
   	if ($strFileType == ".log")
   		$ContentType = "text/plain";
   	if ($strFileType == ".wmv")
   		$ContentType = "video/x-ms-wmv";
	if ($strFileType == ".sxc")
		$ContentType = "application/vnd.sun.xml.calc";
	if ($strFileType == ".odt")
		$ContentType = "application/vnd.oasis.opendocument.text";
	if ($strFileType == ".stc")
		$ContentType = "application/vnd.sun.xml.calc.template";
	if ($strFileType == ".sxd")
		$ContentType = "application/vnd.sun.xml.draw";
	if ($strFileType == ".std")
		$ContentType = "application/vnd.sun.xml.draw.template";
	if ($strFileType == ".sxi")
		$ContentType = "application/vnd.sun.xml.impress";
	if ($strFileType == ".sti")
		$ContentType = "application/vnd.sun.xml.impress.template";
	if ($strFileType == ".sxm")
		$ContentType = "application/vnd.sun.xml.math";
	if ($strFileType == ".sxw")
		$ContentType = "application/vnd.sun.xml.writer";
	if ($strFileType == ".sxq")
		$ContentType = "application/vnd.sun.xml.writer.global";
	if ($strFileType == ".stw")
		$ContentType = "application/vnd.sun.xml.writer.template";
	if ($strFileType == ".ps")
		$ContentType = "application/postscript";
	if ($strFileType == ".pps")
		$ContentType = "application/vnd.ms-powerpoint";
	if ($strFileType == ".odt")
		$ContentType = "application/vnd.oasis.opendocument.text";
	if ($strFileType == ".ott")
		$ContentType = "application/vnd.oasis.opendocument.text-template";
	if ($strFileType == ".oth")
		$ContentType = "application/vnd.oasis.opendocument.text-web";
	if ($strFileType == ".odm")
		$ContentType = "application/vnd.oasis.opendocument.text-master";
	if ($strFileType == ".odg")
		$ContentType = "application/vnd.oasis.opendocument.graphics";
	if ($strFileType == ".otg")
		$ContentType = "application/vnd.oasis.opendocument.graphics-template";
	if ($strFileType == ".odp")
		$ContentType = "application/vnd.oasis.opendocument.presentation";
	if ($strFileType == ".otp")
		$ContentType = "application/vnd.oasis.opendocument.presentation-template";
	if ($strFileType == ".ods")
		$ContentType = "application/vnd.oasis.opendocument.spreadsheet";
	if ($strFileType == ".ots")
		$ContentType = "application/vnd.oasis.opendocument.spreadsheet-template";
	if ($strFileType == ".odc")
		$ContentType = "application/vnd.oasis.opendocument.chart";
	if ($strFileType == ".odf")
		$ContentType = "application/vnd.oasis.opendocument.formula";
	if ($strFileType == ".odi")
		$ContentType = "application/vnd.oasis.opendocument.image";
	if ($strFileType == ".ndl")
		$ContentType = "application/vnd.lotus-notes";
	
   	header ("Content-Type: $ContentType");
   	header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Pragma: public");
    header("Expires: 0"); // set expiration time
    header ("Content-Disposition: attachment; filename=\"". addslashes($newFileName)."\"");   	
    
	if($fileContent) {
		if($encoding == 'base64')
			echo imap_base64($fileContent);
		else if($encoding == 'quoted-printable')
			echo quoted_printable_decode($fileContent);
		else
			echo $fileContent;
	}
	else
		readfile($strFileName);
   }
   ?>